A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6105-00-871-6960
NSN 6145-00-851-5931
NSN 6135-01-620-5244
NSN 5960-01-142-1995
NSN 2925-00-912-3993
NSN 6240-01-104-5085
NSN 5895-00-258-3058
NSN 6620-01-266-8894
NSN 6240-00-683-0725
NSN 6240-01-386-0848
NSN 7035-00-946-2642
NSN 7035-01-549-5462